<pre>Exception (Database Exception) &#039;yii\db\Exception&#039; with message &#039;SQLSTATE[HY000] [1045] Access denied for user &#039;root&#039;@&#039;localhost&#039; (using password: NO)&#039; 

in /www/feehicms/vendor/yiisoft/yii2/db/Connection.php:597

Stack trace:
#0 /www/feehicms/vendor/yiisoft/yii2/db/Connection.php(943): yii\db\Connection-&gt;open()
#1 /www/feehicms/vendor/yiisoft/yii2/db/Connection.php(930): yii\db\Connection-&gt;getMasterPdo()
#2 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(243): yii\db\Connection-&gt;getSlavePdo()
#3 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(1062): yii\db\Command-&gt;prepare(true)
#4 /www/feehicms/vendor/yiisoft/yii2/db/Command.php(386): yii\db\Command-&gt;queryInternal(&#039;fetchAll&#039;, NULL)
#5 /www/feehicms/vendor/yiisoft/yii2/db/mysql/Schema.php(320): yii\db\Command-&gt;queryAll()
#6 /www/feehicms/vendor/yiisoft/yii2/db/mysql/Schema.php(111): yii\db\mysql\Schema-&gt;findColumns(Object(yii\db\TableSchema))
#7 /www/feehicms/vendor/yiisoft/yii2/db/Schema.php(662): yii\db\mysql\Schema-&gt;loadTableSchema(&#039;d-article&#039;)
#8 /www/feehicms/vendor/yiisoft/yii2/db/Schema.php(173): yii\db\Schema-&gt;getTableMetadata(&#039;{{%article}}&#039;, &#039;schema&#039;, false)
#9 /www/feehicms/vendor/yiisoft/yii2/db/ActiveRecord.php(346): yii\db\Schema-&gt;getTableSchema(&#039;{{%article}}&#039;)
#10 /www/feehicms/vendor/yiisoft/yii2/db/ActiveRecord.php(380): yii\db\ActiveRecord::getTableSchema()
#11 /www/feehicms/vendor/yiisoft/yii2/data/ActiveDataProvider.php(183): yii\db\ActiveRecord-&gt;attributes()
#12 /www/feehicms/vendor/yiisoft/yii2/base/Component.php(174): yii\data\ActiveDataProvider-&gt;setSort(Array)
#13 /www/feehicms/vendor/yiisoft/yii2/BaseYii.php(532): yii\base\Component-&gt;__set(&#039;sort&#039;, Array)
#14 /www/feehicms/vendor/yiisoft/yii2/base/BaseObject.php(106): yii\BaseYii::configure(Object(yii\data\ActiveDataProvider), Array)
#15 /www/feehicms/vendor/feehi/cms-core/frontend/controllers/ArticleController.php(86): yii\base\BaseObject-&gt;__construct(Array)
#16 [internal function]: cms\frontend\controllers\ArticleController-&gt;actionIndex(&#039;&#039;)
#17 /www/feehicms/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#18 /www/feehicms/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction-&gt;runWithParams(Array)
#19 /www/feehicms/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller-&gt;runAction(&#039;index&#039;, Array)
#20 /www/feehicms/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module-&gt;runAction(&#039;article/index&#039;, Array)
#21 /www/feehicms/vendor/yiisoft/yii2/base/Application.php(386): yii\web\Application-&gt;handleRequest(Object(yii\web\Request))
#22 /www/feehicms/frontend/web/index-test.php(18): yii\base\Application-&gt;run()
#23 {main}</pre>